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Liquid droplet ejecting apparatus

a technology of ejecting apparatus and liquid droplets, which is applied in the direction of typewriters, printing apparatus, printing, etc., can solve the problems of ink spraying into the air, inadvertent ejecting of ink in unintended situations, and undesired pollution of the environmen

Inactive Publication Date: 2002-10-24
FUJIFILM HLDG CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

On the other hand, it can happen that ink is inadvertently ejected in unintended situations.
Further, if it does not adhere to an object other than the recording object, ink sprayed into the air will, though not poisonous, undesirably pollute the environment.

Method used

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Examples

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Embodiment Construction

[0027] Preferred embodiments of the liquid droplet ejecting apparatus of the present invention will now be described in detail with reference to the accompanying drawings.

[0028] FIGS. 1A, 1B, and 1C are conceptual drawings showing an embodiment of an ink jet printer utilizing the liquid droplet ejecting apparatus of the present invention. FIGS. 1A is a side view (as seen from the direction of the nozzle row described below), FIG. 1B is a front view (as seen from the direction of scanning described below), and FIG. 1C is a bottom view (as seen from the image receiving sheet).

[0029] The ink jet printer (hereinafter referred to as printer) 10 shown in FIGS. 1A, 1B, and 1C basically comprises a main body 12, leg portions 14, rollers 16, auxiliary wheels 17, an ink jet recording head (hereinafter referred to as recording head) 18, and an IR (infrared rays) sensor 20.

[0030] The printer 10 records images an a recording medium other than a human body (a recording sheet P in the example show...

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PUM

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Abstract

The liquid droplet ejecting apparatus includes an ejecting head having a plurality of nozzles for ejecting liquid droplets and a plurality of liquid droplet ejecting devices arranged in correspondence with the plurality of nozzles, respectively, and driven with modulation in response to signals, a detection unit for detecting a condition of a virtual surface opposed to the ejecting head or an angle detection unit for detecting an angle made by a direction, in which liquid droplets are ejected from at least a part of the plurality of nozzles of the ejecting head, and a preset reference direction, and a unit for prohibiting liquid droplet ejection from at least a part of the plurality of nozzles of the ejecting head depending on a result of detection by the detection unit or an angle detected by the angle detection unit.

Description

[0001] 1. Field of the invention[0002] The present invention relates to a liquid droplet ejecting apparatus for use in an ink jet printer or the like, and more specifically, to a liquid droplet ejecting apparatus with high level safety so that inadvertent ejection of ink is prevented in a hand-held type ink jet printer or the like.[0003] 2. Description of the Related Art[0004] There has been utilized a thermal ink jet system in various types of printer (See JP 48-9622 A, JP 54-51837 A, etc.), in which partial evaporation of ink is rapidly effected through heating with a heater to thereby cause ink droplets to be ejected through nozzles by the expansion force, etc.[0005] Further, a printer is known, which utilizes an ink jet that oscillates an oscillation plate by driving means such as static electricity or a piezoelectric element to thereby cause ink droplets to be ejected through nozzles by the oscillation energy (See JP 11-207956 A, JP 11-309850 A, etc.).[0006] In ink jet printers...

Claims

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Application Information

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Patent Type & Authority Applications(United States)
IPC IPC(8): B41J3/28B41J3/36B41J11/00
CPCB41J3/28B41J11/0095B41J11/008B41J3/36B41J29/393
Inventor MATSUMOTO, NUBUO
Owner FUJIFILM HLDG CORP
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